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纳米气泡吸附及其在强化辉银矿浮选方面的作用

Nanobubbles Adsorption and Its Role in Enhancing Fine Argentite Flotation.

作者信息

Yan Shunde, Fang Xihui, Zhao Guanfei, Qiu Tingsheng, Ding Kaiwei

机构信息

School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China.

Jiangxi Provincial Key Laboratory of Low-Carbon Processing and Utilization of Strategic Metal Mineral Resources, Jiangxi University of Science and Technology, Ganzhou 341000, China.

出版信息

Molecules. 2024 Dec 28;30(1):79. doi: 10.3390/molecules30010079.

DOI:10.3390/molecules30010079
PMID:39795136
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11721802/
Abstract

The efficient recovery of fine argentite from polymetallic lead-zinc (Pb-Zn) sulfide ore is challenging. This study investigated nanobubble (NB) adsorption on the argentite surface and its role in enhancing fine argentite flotation using various analytical techniques, including contact angle measurements, adsorption capacity analysis, infrared spectroscopy, zeta potential measurements, turbidity tests, microscopic imaging, scanning electron microscopy, and flotation experiments. Results indicated that the NBs exhibited long-term stability and were adsorbed onto the argentite surface, thereby enhancing surface hydrophobicity, reducing electrostatic repulsion between fine argentite particles, and promoting particle agglomeration. Furthermore, the NBs formed a thin film on the argentite surface, which decreased the adsorption of sodium diethyldithiocarbamate. Microflotation tests confirmed that the introduction of NBs considerably enhanced the recovery of argentite using flotation technology.

摘要

从多金属铅锌（Pb-Zn）硫化矿中高效回收细粒辉银矿具有挑战性。本研究使用多种分析技术，包括接触角测量、吸附容量分析、红外光谱、zeta电位测量、浊度测试、显微镜成像、扫描电子显微镜和浮选实验，研究了纳米气泡（NB）在辉银矿表面的吸附及其在强化细粒辉银矿浮选中的作用。结果表明，纳米气泡表现出长期稳定性，并吸附在辉银矿表面，从而增强表面疏水性，减少细粒辉银矿颗粒之间的静电排斥，并促进颗粒团聚。此外，纳米气泡在辉银矿表面形成了一层薄膜，减少了二乙基二硫代氨基甲酸钠的吸附。微浮选试验证实，引入纳米气泡显著提高了浮选技术回收辉银矿的效率。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d8b/11721802/94ae71afd715/molecules-30-00079-g018.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d8b/11721802/94ae71afd715/molecules-30-00079-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d8b/11721802/5dcf4eca6f5f/molecules-30-00079-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d8b/11721802/5c2d65aa1710/molecules-30-00079-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d8b/11721802/1296dda9ea27/molecules-30-00079-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d8b/11721802/0e7210b3b986/molecules-30-00079-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d8b/11721802/d4ea10533e57/molecules-30-00079-g015.jpg
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